feat: add query index and sitemap

helix-query.yaml

@@ -0,0 +1,14 @@
+version: 1
+
+indices:
+  pages:
+    include:
+      - '/**'
+    target: /query-index.json
+    properties:
+      lastModified:
+        select: none
+        value: parseTimestamp(headers["last-modified"], "ddd, DD MMM YYYY hh:mm:ss GMT")
+      robots:
+        select: head > meta[name="robots"]
+        value: attribute(el, "content")

helix-sitemap.yaml

@@ -0,0 +1,5 @@
+sitemaps:
+  default:
+    source: /query-index.json
+    destination: /sitemap.xml
+    lastmod: YYYY-MM-DD

paths.json

@@ -1,6 +1,7 @@
 {
   "mappings": [
     "/content/aem-boilerplate/:/",
-    "/content/aem-boilerplate/configuration:/.helix/config.json"
+    "/content/aem-boilerplate/configuration:/.helix/config.json",
+    "/content/aem-boilerplate/metadata:/metadata.json"
   ]
 }